diff options
| -rw-r--r-- | board/efikamx/efikamx-usb.c | 24 | ||||
| -rw-r--r-- | drivers/usb/ulpi/ulpi-viewport.c | 32 | ||||
| -rw-r--r-- | drivers/usb/ulpi/ulpi.c | 54 | ||||
| -rw-r--r-- | include/usb/ulpi.h | 36 |
4 files changed, 84 insertions, 62 deletions
diff --git a/board/efikamx/efikamx-usb.c b/board/efikamx/efikamx-usb.c index 840bd9a..ac2d2e9 100644 --- a/board/efikamx/efikamx-usb.c +++ b/board/efikamx/efikamx-usb.c @@ -120,6 +120,7 @@ static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio, { int ret; struct ulpi_regs *ulpi = (struct ulpi_regs *)0; + struct ulpi_viewport ulpi_vp; mxc_request_iomux(stp_gpio, alt0); mxc_iomux_set_pad(stp_gpio, PAD_CTL_DRV_HIGH | @@ -133,23 +134,26 @@ static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio, mxc_iomux_set_pad(stp_gpio, USB_PAD_CONFIG); udelay(10000); - ret = ulpi_init((u32)&ehci->ulpi_viewpoint); + ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint; + ulpi_vp.port_num = 0; + + ret = ulpi_init(&ulpi_vp); if (ret) { printf("Efika USB ULPI initialization failed\n"); return; } /* ULPI set flags */ - ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl, + ulpi_write(&ulpi_vp, &ulpi->otg_ctrl, ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN | ULPI_OTG_EXTVBUSIND); - ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->function_ctrl, + ulpi_write(&ulpi_vp, &ulpi->function_ctrl, ULPI_FC_FULL_SPEED | ULPI_FC_OPMODE_NORMAL | ULPI_FC_SUSPENDM); - ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->iface_ctrl, 0); + ulpi_write(&ulpi_vp, &ulpi->iface_ctrl, 0); /* Set VBus */ - ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set, + ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT); /* @@ -158,8 +162,7 @@ static void efika_ehci_init(struct usb_ehci *ehci, uint32_t stp_gpio, * NOTE: This violates USB specification, but otherwise, USB on Efika * doesn't work. */ - ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set, - ULPI_OTG_CHRGVBUS); + ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS); } int board_ehci_hcd_init(int port) @@ -177,9 +180,12 @@ void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg) uint32_t port = OTG_BASE_ADDR + (0x200 * CONFIG_MXC_USB_PORT); struct usb_ehci *ehci = (struct usb_ehci *)port; struct ulpi_regs *ulpi = (struct ulpi_regs *)0; + struct ulpi_viewport ulpi_vp; + + ulpi_vp.viewport_addr = (u32)&ehci->ulpi_viewpoint; + ulpi_vp.port_num = 0; - ulpi_write((u32)&ehci->ulpi_viewpoint, &ulpi->otg_ctrl_set, - ULPI_OTG_CHRGVBUS); + ulpi_write(&ulpi_vp, &ulpi->otg_ctrl_set, ULPI_OTG_CHRGVBUS); wait_ms(50); diff --git a/drivers/usb/ulpi/ulpi-viewport.c b/drivers/usb/ulpi/ulpi-viewport.c index 490fb0e..b4974ed 100644 --- a/drivers/usb/ulpi/ulpi-viewport.c +++ b/drivers/usb/ulpi/ulpi-viewport.c @@ -40,13 +40,13 @@ * * returns 0 on mask match, ULPI_ERROR on time out. */ -static int ulpi_wait(u32 ulpi_viewport, u32 mask) +static int ulpi_wait(struct ulpi_viewport *ulpi_vp, u32 mask) { int timeout = CONFIG_USB_ULPI_TIMEOUT; /* Wait for the bits in mask to become zero. */ while (--timeout) { - if ((readl(ulpi_viewport) & mask) == 0) + if ((readl(ulpi_vp->viewport_addr) & mask) == 0) return 0; udelay(1); @@ -60,16 +60,16 @@ static int ulpi_wait(u32 ulpi_viewport, u32 mask) * * returns 0 on success. */ -static int ulpi_wakeup(u32 ulpi_viewport) +static int ulpi_wakeup(struct ulpi_viewport *ulpi_vp) { int err; - if (readl(ulpi_viewport) & ULPI_SS) + if (readl(ulpi_vp->viewport_addr) & ULPI_SS) return 0; /* already awake */ - writel(ULPI_WU, ulpi_viewport); + writel(ULPI_WU, ulpi_vp->viewport_addr); - err = ulpi_wait(ulpi_viewport, ULPI_WU); + err = ulpi_wait(ulpi_vp, ULPI_WU); if (err) printf("ULPI wakeup timed out\n"); @@ -81,38 +81,40 @@ static int ulpi_wakeup(u32 ulpi_viewport) * * @value - the ULPI request */ -static int ulpi_request(u32 ulpi_viewport, u32 value) +static int ulpi_request(struct ulpi_viewport *ulpi_vp, u32 value) { int err; - err = ulpi_wakeup(ulpi_viewport); + err = ulpi_wakeup(ulpi_vp); if (err) return err; - writel(value, ulpi_viewport); + writel(value, ulpi_vp->viewport_addr); - err = ulpi_wait(ulpi_viewport, ULPI_RWRUN); + err = ulpi_wait(ulpi_vp, ULPI_RWRUN); if (err) printf("ULPI request timed out\n"); return err; } -int ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value) +int ulpi_write(struct ulpi_viewport *ulpi_vp, u8 *reg, u32 value) { u32 val = ULPI_RWRUN | ULPI_RWCTRL | ((u32)reg << 16) | (value & 0xff); - return ulpi_request(ulpi_viewport, val); + val |= (ulpi_vp->port_num & 0x7) << 24; + return ulpi_request(ulpi_vp, val); } -u32 ulpi_read(u32 ulpi_viewport, u8 *reg) +u32 ulpi_read(struct ulpi_viewport *ulpi_vp, u8 *reg) { int err; u32 val = ULPI_RWRUN | ((u32)reg << 16); - err = ulpi_request(ulpi_viewport, val); + val |= (ulpi_vp->port_num & 0x7) << 24; + err = ulpi_request(ulpi_vp, val); if (err) return err; - return (readl(ulpi_viewport) >> 8) & 0xff; + return (readl(ulpi_vp->viewport_addr) >> 8) & 0xff; } diff --git a/drivers/usb/ulpi/ulpi.c b/drivers/usb/ulpi/ulpi.c index 6202227..dde2585 100644 --- a/drivers/usb/ulpi/ulpi.c +++ b/drivers/usb/ulpi/ulpi.c @@ -37,18 +37,18 @@ static struct ulpi_regs *ulpi = (struct ulpi_regs *)0; -static int ulpi_integrity_check(u32 ulpi_viewport) +static int ulpi_integrity_check(struct ulpi_viewport *ulpi_vp) { u32 val, tval = ULPI_TEST_VALUE; int err, i; /* Use the 'special' test value to check all bits */ for (i = 0; i < 2; i++, tval <<= 1) { - err = ulpi_write(ulpi_viewport, &ulpi->scratch, tval); + err = ulpi_write(ulpi_vp, &ulpi->scratch, tval); if (err) return err; - val = ulpi_read(ulpi_viewport, &ulpi->scratch); + val = ulpi_read(ulpi_vp, &ulpi->scratch); if (val != tval) { printf("ULPI integrity check failed\n"); return val; @@ -58,7 +58,7 @@ static int ulpi_integrity_check(u32 ulpi_viewport) return 0; } -int ulpi_init(u32 ulpi_viewport) +int ulpi_init(struct ulpi_viewport *ulpi_vp) { u32 val, id = 0; u8 *reg = &ulpi->product_id_high; @@ -66,7 +66,7 @@ int ulpi_init(u32 ulpi_viewport) /* Assemble ID from four ULPI ID registers (8 bits each). */ for (i = 0; i < ULPI_ID_REGS_COUNT; i++) { - val = ulpi_read(ulpi_viewport, reg - i); + val = ulpi_read(ulpi_vp, reg - i); if (val == ULPI_ERROR) return val; @@ -76,10 +76,10 @@ int ulpi_init(u32 ulpi_viewport) /* Split ID into vendor and product ID. */ debug("ULPI transceiver ID 0x%04x:0x%04x\n", id >> 16, id & 0xffff); - return ulpi_integrity_check(ulpi_viewport); + return ulpi_integrity_check(ulpi_vp); } -int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed) +int ulpi_select_transceiver(struct ulpi_viewport *ulpi_vp, unsigned speed) { u32 tspeed = ULPI_FC_FULL_SPEED; u32 val; @@ -96,17 +96,18 @@ int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed) "falling back to full speed\n", __func__, speed); } - val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); + val = ulpi_read(ulpi_vp, &ulpi->function_ctrl); if (val == ULPI_ERROR) return val; /* clear the previous speed setting */ val = (val & ~ULPI_FC_XCVRSEL_MASK) | tspeed; - return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val); + return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val); } -int ulpi_set_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind) +int ulpi_set_vbus(struct ulpi_viewport *ulpi_vp, int on, int ext_power, + int ext_ind) { u32 flags = ULPI_OTG_DRVVBUS; u8 *reg = on ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear; @@ -116,18 +117,18 @@ int ulpi_set_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind) if (ext_ind) flags |= ULPI_OTG_EXTVBUSIND; - return ulpi_write(ulpi_viewport, reg, flags); + return ulpi_write(ulpi_vp, reg, flags); } -int ulpi_set_pd(u32 ulpi_viewport, int enable) +int ulpi_set_pd(struct ulpi_viewport *ulpi_vp, int enable) { u32 val = ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN; u8 *reg = enable ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear; - return ulpi_write(ulpi_viewport, reg, val); + return ulpi_write(ulpi_vp, reg, val); } -int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode) +int ulpi_opmode_sel(struct ulpi_viewport *ulpi_vp, unsigned opmode) { u32 topmode = ULPI_FC_OPMODE_NORMAL; u32 val; @@ -144,17 +145,17 @@ int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode) "falling back to OpMode Normal\n", __func__, opmode); } - val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); + val = ulpi_read(ulpi_vp, &ulpi->function_ctrl); if (val == ULPI_ERROR) return val; /* clear the previous opmode setting */ val = (val & ~ULPI_FC_OPMODE_MASK) | topmode; - return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val); + return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val); } -int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode) +int ulpi_serial_mode_enable(struct ulpi_viewport *ulpi_vp, unsigned smode) { switch (smode) { case ULPI_IFACE_6_PIN_SERIAL_MODE: @@ -166,14 +167,14 @@ int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode) return ULPI_ERROR; } - return ulpi_write(ulpi_viewport, &ulpi->iface_ctrl_set, smode); + return ulpi_write(ulpi_vp, &ulpi->iface_ctrl_set, smode); } -int ulpi_suspend(u32 ulpi_viewport) +int ulpi_suspend(struct ulpi_viewport *ulpi_vp) { int err; - err = ulpi_write(ulpi_viewport, &ulpi->function_ctrl_clear, + err = ulpi_write(ulpi_vp, &ulpi->function_ctrl_clear, ULPI_FC_SUSPENDM); if (err) printf("ULPI: %s: failed writing the suspend bit\n", __func__); @@ -186,7 +187,7 @@ int ulpi_suspend(u32 ulpi_viewport) * Actual wait for reset must be done in a view port specific way, * because it involves checking the DIR line. */ -static int __ulpi_reset_wait(u32 ulpi_viewport) +static int __ulpi_reset_wait(struct ulpi_viewport *ulpi_vp) { u32 val; int timeout = CONFIG_USB_ULPI_TIMEOUT; @@ -199,7 +200,7 @@ static int __ulpi_reset_wait(u32 ulpi_viewport) * for the error of ulpi_read(), if there is one, then * there will be a timeout. */ - val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl); + val = ulpi_read(ulpi_vp, &ulpi->function_ctrl); if (!(val & ULPI_FC_RESET)) return 0; @@ -210,18 +211,19 @@ static int __ulpi_reset_wait(u32 ulpi_viewport) return ULPI_ERROR; } -int ulpi_reset_wait(u32) __attribute__((weak, alias("__ulpi_reset_wait"))); +int ulpi_reset_wait(struct ulpi_viewport *ulpi_vp) + __attribute__((weak, alias("__ulpi_reset_wait"))); -int ulpi_reset(u32 ulpi_viewport) +int ulpi_reset(struct ulpi_viewport *ulpi_vp) { int err; - err = ulpi_write(ulpi_viewport, + err = ulpi_write(ulpi_vp, &ulpi->function_ctrl_set, ULPI_FC_RESET); if (err) { printf("ULPI: %s: failed writing reset bit\n", __func__); return err; } - return ulpi_reset_wait(ulpi_viewport); + return ulpi_reset_wait(ulpi_vp); } diff --git a/include/usb/ulpi.h b/include/usb/ulpi.h index 802f077..4a23fd2 100644 --- a/include/usb/ulpi.h +++ b/include/usb/ulpi.h @@ -28,12 +28,23 @@ #endif /* + * ulpi view port address and + * Port_number that can be passed. + * Any additional data to be passed can + * be extended from this structure + */ +struct ulpi_viewport { + u32 viewport_addr; + u32 port_num; +}; + +/* * Initialize the ULPI transciever and check the interface integrity. - * @ulpi_viewport - the address of the ULPI viewport register. + * @ulpi_vp - structure containing ULPI viewport data * * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_init(u32 ulpi_viewport); +int ulpi_init(struct ulpi_viewport *ulpi_vp); /* * Select transceiver speed. @@ -41,7 +52,7 @@ int ulpi_init(u32 ulpi_viewport); * ULPI_FC_LOW_SPEED, ULPI_FC_FS4LS * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed); +int ulpi_select_transceiver(struct ulpi_viewport *ulpi_vp, unsigned speed); /* * Enable/disable VBUS. @@ -50,14 +61,15 @@ int ulpi_select_transceiver(u32 ulpi_viewport, unsigned speed); * * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_enable_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind); +int ulpi_enable_vbus(struct ulpi_viewport *ulpi_vp, + int on, int ext_power, int ext_ind); /* * Enable/disable pull-down resistors on D+ and D- USB lines. * * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_set_pd(u32 ulpi_viewport, int enable); +int ulpi_set_pd(struct ulpi_viewport *ulpi_vp, int enable); /* * Select OpMode. @@ -66,7 +78,7 @@ int ulpi_set_pd(u32 ulpi_viewport, int enable); * * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode); +int ulpi_opmode_sel(struct ulpi_viewport *ulpi_vp, unsigned opmode); /* * Switch to Serial Mode. @@ -78,7 +90,7 @@ int ulpi_opmode_sel(u32 ulpi_viewport, unsigned opmode); * Switches immediately to Serial Mode. * To return from Serial Mode, STP line needs to be asserted. */ -int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode); +int ulpi_serial_mode_enable(struct ulpi_viewport *ulpi_vp, unsigned smode); /* * Put PHY into low power mode. @@ -89,14 +101,14 @@ int ulpi_serial_mode_enable(u32 ulpi_viewport, unsigned smode); * STP line must be driven low to keep the PHY in suspend. * To resume the PHY, STP line needs to be asserted. */ -int ulpi_suspend(u32 ulpi_viewport); +int ulpi_suspend(struct ulpi_viewport *ulpi_vp); /* * Reset the transceiver. ULPI interface and registers are not affected. * * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_reset(u32 ulpi_viewport); +int ulpi_reset(struct ulpi_viewport *ulpi_vp); /* ULPI access methods below must be implemented for each ULPI viewport. */ @@ -108,7 +120,7 @@ int ulpi_reset(u32 ulpi_viewport); * * returns 0 on success, ULPI_ERROR on failure. */ -int ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value); +int ulpi_write(struct ulpi_viewport *ulpi_vp, u8 *reg, u32 value); /* * Read the ULPI PHY register content via the viewport. @@ -116,14 +128,14 @@ int ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value); * * returns register content on success, ULPI_ERROR on failure. */ -u32 ulpi_read(u32 ulpi_viewport, u8 *reg); +u32 ulpi_read(struct ulpi_viewport *ulpi_vp, u8 *reg); /* * Wait for the reset to complete. * The Link must not attempt to access the PHY until the reset has * completed and DIR line is de-asserted. */ -int ulpi_reset_wait(u32 ulpi_viewport); +int ulpi_reset_wait(struct ulpi_viewport *ulpi_vp); /* Access Extended Register Set (indicator) */ #define ACCESS_EXT_REGS_OFFSET 0x2f /* read-write */ |